Airbags

B0087 — Third-Row Center Seatbelt Load Limiter Deployment Control Fault

Severity: medium Safe to drive

What B0087 means

The supplemental restraint system (SRS) control unit detected a fault in the circuit that controls deployment of the load limiter on the third-row center seatbelt. In a crash, the load limiter lets the belt pay out slightly to reduce force on the occupant's chest. With this fault, the module cannot guarantee that function works. The code is a subfault, so the exact cause should be confirmed with scan tool data.

Symptoms

  • SRS/airbag warning light on the instrument cluster
  • Seatbelt warning light or chime for the third-row center seat
  • B0087 returns after being cleared
  • Other SRS codes may be stored
  • Usually no change in driving behavior

Possible causes

  1. Poor connection or damaged wiring and connectors in the third-row center belt harness
  2. Faulty load limiter or actuator in the seatbelt assembly
  3. Harness damage under trim or seats, or at folding seat pivots
  4. SRS module or related body control module fault, including software
  5. Improper work on the belt system or aftermarket seat changes

How to diagnose

  1. Scan all modules with an SRS-capable tool and note whether the code is current or history
  2. Inspect connectors and wiring near the third-row center seat for pinching, corrosion or damage
  3. Ask about prior repairs, seat removal or non-original parts
  4. Test circuit continuity and resistance per factory procedure, following SRS safety precautions
  5. Check battery voltage and ground connections
  6. Look for software updates and technical service bulletins
  7. Clear the code and confirm it does not return after the repair

Common fixes

  • Repair wiring or replace a damaged connector
  • Replace the seatbelt assembly with its load limiter
  • Update module software per manufacturer instructions
  • Replace the SRS or body control module if confirmed faulty

Questions and answers

Can I drive with code B0087?

Yes, it does not affect the engine or brakes. But the belt at that seat may not protect properly in a crash, so don't delay the repair.

Can I just clear B0087?

You can, but if the fault is real it will return and the SRS light will come back on. Find the cause first, most often wiring or a connector.

Can I repair SRS circuits myself?

Work near airbags and pretensioners is risky because of the pyrotechnic charges. A shop that knows the proper disable and test procedures is the safer choice.

This is general information about the code. The meaning can differ between makes and models: a scan tool and the repair manual for your car will show the exact cause.